What conditions are needed to make a cloud
The air temperature is almost at dewpoint and
there are condensation nuclei present.
The air temperature is colder than the
dewpoint and there are no condensation
nuclei present.
The air temperature equals the dewpoint and
there are condensation nuclei present.

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?

Which sections of the heating curve illustrate this process?